Optical constants of HIKARI - LaK (Lanthanum crown)
J-LAK12
Wavelength:
µm
(0.290–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.76331704-0.0111612524λ^{2}-0.000129016401λ^{4}+0.0184973677λ^{-2}+0.000256863267λ^{-4}+6.55822525\text{×}10^{-06}λ^{-6}+7.62548252\text{×}10^{-08}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: -3.2027e-06 1.0309e-08 -1.46e-12 5.4747e-07 4.6348e-10 0.17237
nd: 1.677900
Vd: 55.348146
density: 3.78 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.8e-06 K-1
dPgF: -0.0045
phosphate_resistance: 4.0
References
NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets
Data
INFO
Hikari Glass Co., Ltd.
Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.External links
- Hikari Glass Co., Ltd. (in Japanese)
- Nikon